Mathematics College


In a class of 30 students, 13 of them are boys.
What percentage of the class are girls?
Give your answer to 1 decimal place.

Answers

Answer 1

Answer:

56.7%

Step-by-step explanation:

30-13=17

(on a scientific calculator) 17/30=

0.56666667 x 100= 56.7 (round it up)

you can use this method everytime when trying to find a percantge.

Related Questions

Eric is x years old. Eric's sister is 5 years older than Eric. His mother is 3 times his sister's age. His father is x years older than his mother. How old is Eric's father if he was 8 years old? How old is Eric's mother is he was 8 years old?

Answers

Answer:

Eric´s mother is 39 years old.

Step-by-step explanation:

Eric is 8, so 8+5 = 13 then 13x3 = 39

Answer:

Eric mother was 39 years old and the father is 47 years old.

Step-by-step explanation:

I hope this helped.

Estimate the sum to the nearest ten. 772 + 146 =
?

Answers

Answer:

920

Step-by-step explanation:

added up the original answer would be 918 but you have to round up to 920

Answer:

918.0

Step-by-step explanation:

What is the answer to this?

Answers

Answer:

0 = 73

add 90 and 17 which equals 107 take 180 - 107 = 73

If I have 41 red mechanical pencils and each pencil has 3 pieces of lead in it. How many pieces of lead are there in all

Answers

Answer:

there are 123 pieces of lead in all

-9(8x — 8) = 8(-7 - 10x)

Answers

Answer:

×=1/3

Step-by-step explanation:

8x –3(5x–2)=7–10x

Distribute

8x - 15x +6 = 7-10x

Combine like terms

-7x + 6 = 7- 10x

Add 10x to each side

-7x +10x+ 6 = 7- 10x+10x

3x+6 = 7

Subtract 6 from each side

3x+6-6 =7-6

3x = 1

Divide each side by 3

3x/3 = 1/3

x = 1/3

How many minutes in 255 seconds A)2 11/12 B)3 5/12 C)3 3/4 D) 4 1/4

Answers

Answer:

4 1/4

Step-by-step explanation:

divide 255 by 60

41 /4 minutes jvavkala

Monica paid sales tax of $105 when she bought a new TV. If the sales tax is 5%, what was the cost of the TV?​

Answers

Answer:

$31.5

Step-by-step explanation:

X * 5% = $1.50

X = $1.50 / 5%

Or by using simple rule of three:

If 5% is $1.50

Then 100% is X

So you obtain = $30

Now you just need to sum The net prices and the taxes

Net + tax = Total Charge

$30 + $1.5 = $31.5

What do you get when you simplify 12/8

Answers

Answer:

3/2

Step-by-step explanation:

You can divide both 12 and 8 by four. Dividing 12 by four gives you 3 and dividing 8 by 4 gives you 2. This makes the simplified fraction 3/2

:)

SOMEONE HELP I'LL MARK CORRECT ANSWER BRAINLY

Answers

Answer:

B

Step-by-step explanation:

PLS HELP ITS URGENT!!!!!!!!!!!!!!!!! Pizza Guy pizza delivery time for a pizza is approximately normally distributed with a mean of 22 minutes and a standard deviation of 5. Pizza Guy guarantees delivery within 30 minutes or the pizza is free. What percent of customers will get a free pizza?

Answers

Answer:

I'm not positive since it's been a couple months but the answer is 95%

Step-by-step explanation:

30-22/5 = 1.6 with a z score of 0.9452 with a percentage of 94.52%

Whats the Quotient for 95÷5

Answers

Answer:

12

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

I hope this helps you!

Is the slope positive or negative?

Answers

the slope is positive

6) 9x - 7y = -4
18x - 14 y = 10
A) (8, -1)
C) (-8,-8)
B) (-8,-1)
D) No solution

Answers

Answer:

D). No solution

Step-by-step explanation:

9x - 7y = -4

18x - 14 y = 10

9x - 7y = 5

9x - 7y = -4

9x - 7y = 5

__________--

0 = -9

No solution

What information does the reader know before it is discovered by the other characters in the play?

​

Answers

Answer:

The woman will give the brothers an unusual test

Step-by-step explanation:

What is the total area of this composite figure rounded to the nearest hundredth?



29.57 mm 2
19.14 mm 2
17.57 mm 2
31.14 mm 2

Answers

Answer:

choice #4, total=31.14 mm^2

Step-by-step explanation:

14x2=28 is area of rectangle

1^2xPi=area of small circle

3.14=area of small circle

total=31.14 mm^2

Which ordered pair is NOT included in a graph of y=x+5?

Answers

I need the picture to answer it

PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!

Answers

It should be 12.5 units^2 :)

ANSWER GET BRAINLIEST

Answers

Step-by-step explanation:

Ay bro use photomath its really easy to awnsere with it just take a photo of the question and it'll give u steps

For the pair of supply-and-demand equations, where x represents the quantity demanded in units of 1000 and p is the unit price in dollars, find the equilibrium quantity and the equilibrium price.
p = −0.3x + 6 and p = 0.05x + 2.5
equilibrium quantity
units
equilibrium price $

Answers

9514 1404 393

Answer:

  (x, p) = (10, 3)

Step-by-step explanation:

Equating the expressions for p, we have ...

  -0.3x +6 = 0.05x +2.5

  3.5 = 0.35x . . . . . add 0.3x-2.5

  10 = x . . . . . . . . . . divide by 0.35

  p = -0.3(10) +6 = 3

The equilibrium quantity is 10 units.

The equilibrium price is $3.

4 1/2 - 1 2/3 = ?


what is the question mark ?​

Answers

Answer:

17/6 LMK if you need a different form.

Step-by-step explanation:

Find what the value of x.
60
15
30
45

Answers

Answer:

ANS;;;; 45 ...........................

The answer is 45
Explanation: because the angle is a 90 degree angle and the line goes directly through the angle so you would divide 90 by 2 therefore getting 45

i need help asap do tonight

Answers

Answer:

The first one..

Step-by-step explanation:

Answer:

The top one

Step-by-step explanation:

If you minus 19-10 you get 9 then if you divide 9 by 3 you get 3 which means that each soda costs 3 bucks

A^3+B^3= What is the solution?

Answers

the solution is A^3+B^3 there is no other answer

Convert 6.3 m to millimeters

Answers

Hi. 6.3 meters to millimetres is 6300

Plerson's science grades were 95,87, 75,78, 84, and 97.
What was the average of her grades?

Answers

Answer:

The average is 86

Step-by-step explanation:

so you have to take all the numbers and add them together, the answer of all the numbers together should be: 516. Then you divide 516 by 6 which equals 86.

So the average of 95,87,75,78,84, and 97 is 86

Hope this helps:)

Robertson builds 3 chairs every hour how many hours does he have to work to build 999 chairs

Answers

Answer:

333 hours

Step-by-step explanation:

you didvide 999by 3

Please i need help thank you!..

Answers

Question 4 is Choice A
Question 5 is Choice B
Question 6 is Choice C
Question 7 is Choice B

These are relatively simple it’s just understanding the relations of x and y values :)

If a pound of coffee costs 12. How many ounces can be brought for 3.90

Answers

32.5 is the right answer I believe

can somebody please help

a. 44.5

b. 15

c. 37.5

d. 26.25

Answers

Answer:

I think c

Step-by-step explanation:

not completely sure cant see question

It is c because 30+5= 35

Function C gives the cost, in dollars, of buying n apples. What does this equation represent in this situation?

C(5)=4.50

help pls

Answers

Answer:

The cost of 5 apples.

Step-by-step explanation:

Typically the equation would be written as C(n) = 4.50

Since 5 is where 'n' should be, then that means the number of apples in the equation is five.

C(5) = 4.50

Means, that 5 apples cost $4.50

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